Installed the last 2x2 cross braces to stiffen the spot where the range hood vent is at, and the horizontal stiffeners for where the front half's walls plywood will seam together.

Also uninstalled the water heater, I made the mistake of installing it early on after pulling it from the KIT, and now I had to take it back out so I could install the plywood on the wall and router out the openings for the windows and the water heater and other fittings.